Closure for liquid fuel tanks and barrels



Nov. '27, 1934. w. J. OXLEY ET AL 1,982,066

cLosURE FOR LIQUID FUEL TANKS AND BARRELS Filed July 15, 1953 Patented Nov. 27, 1934 CLOSURE Fon LIQUID FUEL TANKS AND BARRELS William John Oxley, Willowdale, Ontario, and Leo Michael Frank, New Toronto, Ontario,

Canada ApplicationA July 13, 1933, Serial No. 680,288

' 1 Claim.

Our invention relates to improvements in*A closures for liquid fuel tanks and barrels, and the object of the invention is to provide a closure which will prevent the refilling of the metal tank or barrel with a different grade of fuel or the injection of water or other fluid into the fuel by an unauthorized person, and it consists essentially of a iuel container havingr the usual lling orifices and an internally threaded cap secured in the orifice, a valve easing having a valve seat adjacent the bottom of the tank, a valve coaeting with the valve seat, a tubular pump stem, a key seat, and key means for opening the valve operated by the insertion of the stem as the stem and valve engage and for closing the valve by the withdrawal of the stem.

Fig. l is a sectional view through our device intermediately broken away of its length and applied to fragmentary portions of a container and showing the parts in the normal position.

Fig. 2 is a similar View to Fig. 1 showing the pump inserted in position for opening the valve.

Fig. 3 is a similar View to Figs. 1 and 2 showing the valve in the open position. Fig. 4 is a plan sectional View on line 4-4 Fig. 2.

Fig. is a plan sectional view on line 5 -5 Fig. 3.

in the drawing like characters of reference indicate corresponding parts in each figure.

l and 2 are upper and lower fragmentary portions oi a metal container such as is used for containing fuel oil. lX is an orifice formed in the upper wall 1 oi the container and 2x is an orifice formed in the bottom wall 2o of the container.

3 is a circular casting or cap having an external annular flange 3X resting on the wall 1 around the edge of the orifice 1X and welded to said wall as indicated at 3 so that the recessed body of the casting depends through the orifice 1X, such recessed body being provided with a central orince 4 around which depends an annular ange or sleeve 4X threaded internally at 40 and having an internal recess 4 at its lower end for a purpose which will hereinafter appear.

5 and 6 are members of a valve casing, the member 5 having a tapered seat 5X, the upper portion of the member being internally threaded as indicated at 5 of the same pitch as the thread 4 but reverse thereto. 5 is an annular flange formed at the bottom of the member 5 and welded as indicated at '7 to the outer face of the wall 2 so that the easing member 5 is supported to extend through the orifice 2X in vertical alignment with the casting 3. 8 is an an-. nular flange which extends around the casting 5 and upon which is supported the upper casing member 6 to which it is welded as indicated at 9. The top of the member 6 is provided with a central orifice 10 and an annular flange l1v forming a recess l2.

13 is an annular' washer tting the recess 12. The washer 13 is provided with diametrically opposite slots 13X extending from its internal periphery and forming guides es will hereinafter appear. 14 is a tube resting, at its lower end, upon the washer 13 and welded in the recess 12 as indicated at 15 and fitting at its upper end in the recess 4.

16 is a valve cylindrical in form and provided with a tapered lower end corresponding in taper to the taper of the seat 5X. The valve 16 is also provided with an external thread 16x engaging the thread 5o of the casing. The Valve 16 is further provided at its upper end with an annular flange 160. 17 is a lock washer locatedbetween the ilange 16D and the upper edge of the casing member 5 and which is compressed as the Valve 1S assumes its closed position.

18 are ports through which the oil or other fluid passes into or out of the container.

The valve 16 is provided with a central orice 19 from which extend diametrically opposite slots 20 forming a key seat, the opposite walls of the slots being ribbed and grooved as at 21.

23 is a tubular stem provided at its upper end with pump mechanism or iilling funnel, the lower end 24 oi which is externally threaded as indicated at 25 to engage the thread 4 ofthe cap 3. The stem 23 is provided with diametrically opposite key wings 23X adapted to pass freely through the slots 13 and. having their opposite faces ribbed and grooved to correspond to the ribbed and grooved faces of the slot walls 21.

26 is a closing plug which is threaded to engage the thread oi the cap 3 and is provided with an annular iiange 2'? between which and the base of the cap recess fits a packing washer v28. 29 is an air vent.

When it is desired to iill the container, the plug 26 is unscrewed and the funnel or pump stem 23 inserted, the key wings 23X passing freely through the slots 13K of the washer 13. The slots 13X are in vertical alignment with the slots 20 and therefore form guides for the key wings so that they pass directly into the slots 20 of the valve, the ribbed faces of the key wings engaging the wing surfaces of the slots. It will of course be understood the wing faces of each owner differ in formation from the wing faces of any other owner so that only the person whov has access to the pump or filling funnel of the owner can operate the valve to open or close.

When the stem 23 with the key wings is inserted as above described and the thread 25 is screwed into engagement with the thread 4, the valve 16 is rotated in the same direction and by reason of its thread 16x and the thread 5o being in the opposite direction to the threads 25 and 4, the valve 16 is screwed upward as the end 24 is screwed downward thereby raising the valve off its sea-t and opening the oriiices 18 to permit liquid to be passed through the stern 23 and to beneath the open valve and through the orices 18 into the container. By unscrewing the pump or funnel the valve 16 is automatically returned toits seat so that no other liquid could be passed into v the tank.

From this description it will be seen that we have provided a means which will prevent passing of any fluid into the container other than that -Whichit is intended by its owner to contain thereby protecting both the owner and the consumer, the owner having assurance that he will not lose the patronage of his customers due to their receiving a lower grade or watered fuel and the customer having assurance that he will receive the brand of fuel undiluted which the owner advertises for sale.

What we claim as our invention is: The combination with a valve casing having an open upper end, an interiorly threaded inter-A mediate portion and a laterally perforated lower end, an outer tube extending from the open upper end of the valve casing, an internally thread-` ed member at theupper end of the outer tube and corresponding in pitch to the thread of the valve casing, a valve having a centralopening extending `axially therethrough, diametric recesses extending'from the upper'end of the central opening, an externally threaded portion engaging the thread of the casing, an inner tube, an externally threaded member at the upper end of the inner tube for engaging the thread at the upper end of the outer tube, and wing members extending diametrically from the opposite end of the inner tube to engage the diametric recesses of the valve. i

WILLIAM JOHN OXLEY. LEO MICHAEL FRANK. 

